Used primarily in research settings to study the environmental impact and behavior of polychlorinated biphenyls (PCBs). It serves as a reference compound in analytical chemistry for detecting and quantifying PCB contamination in environmental samples like soil, water, and air. Due to its persistence and toxicity, it aids in understanding the long-term effects of PCBs on ecosystems and human health. Additionally, it is utilized in toxicology studies to assess the mechanisms of PCB-induced toxicity and to develop remediation strategies for PCB-polluted environments.